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Letters Patent No. 95,512', dated Oculta- 5, 1869.

Mok- IMPROVEMENT IN AIR-PRESSURE WATER-RESERVOIRS.

The Schedule referred to in these Letters Patent and making part of the same.

-To all whom itmay'concern Be it known that I, JAMES W. PRENDnReAs'r, of New York -city, in the county and State of New York, have invented a new and useful Improvement in Apparatus for RaisingWater; and I do hereby declare that the following is afnll, clear, and exact description thereof, which will Y enable others skilled in the art to make and use the same, reference being had to the accompanying drawing, lforming part ot' this specification.

This invention relates to a new and useful method of laising water, and consists in forcing the waterinto a vertical cylindeP, provided with a ball-valve, a trans- Vparent gauge-tube, and suitable admission and discharge-pipes, as will be hereinafter more fully described.

The accompanying drawing represents a water andA air-tight cylinder, constructed and arranged according to my invention.

A is the cylinder, which is made air-tight, of any required height and diameter, and suiiiciently strong to sustaina pressure of, say, two hundred pounds to ,the square inch.

B represents a glass tube, which is `in communication with both the upper and the lower-,ends of the cylinder, so thatthe height of the water in the cylinder may at all times lie indicated.

C is the pipe, through which the water is admitted.

D is the discharge-pipe.

The latter pipe enters the cylinder, and turns up, forming an elbow therein, with a floating valve, e, in the cylinder, for stopping the ilow of water from the discharge-pipe, and preventing the escape of the confined air, when the Water descends to a certain point;

The Valve is guided to its seat on the pipe by inclined rods or Wires f f, as secu in the drawing.

g and h represent stop-cocks in the pipes O and D. y In the use of this apparatus, it is designed to have a pressure of air of from live to ten pounds in the cylinder, at all times; consequently, air, instead of water,

(as regards a head ef waterf) of the most approved water-works. f y

The advantages of this arrangement for countryresidences, and for all situationsv where water is not supplied from the public reservoir, (and in many situations where it is,) are many, and must be obvious to all.

I claim as new, and desire to secure by Letters Patent- The cylinder A, gauge-tube B, and ball-valve e, tov -gether with admission and discharge-pipes G D, coin- -bined and arranged substantially as and for-the purpose herein shown and described. v The above. specification of my invention signed by me, this 10thy d ay ol' February, 1869. Vitnesses: JAMES YV. PRENDERGAST.

lFRANK BLocKLEY,

E. Grauens CoLLINs. 

